gibmiser@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-24 months agoTIL: Amazing Process of Cutting Gigantic Volcanic Glass to Make Crystal Ballsyoutu.beexternal-linkmessage-square2fedilinkarrow-up10arrow-down10file-text
arrow-up10arrow-down1external-linkTIL: Amazing Process of Cutting Gigantic Volcanic Glass to Make Crystal Ballsyoutu.begibmiser@lemmy.world to Today I Learned@lemmy.worldEnglish · edit-24 months agomessage-square2fedilinkfile-text
It’s slag.